I am new in this field. I took back up from FX2N64MR-DS with gx developer- fx software. There is one folder and three files ,RESOURCE FOLDER+GPPW.GPJ(IK)+GPPW.GPS(21K)+PROJECT. Witch file I have to write a new plc?.i tray gppw.gps its saying that data correpted. But gppw.gpj is opening . witch file will write exact settings of my old plc. pls advise me?